<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>

    <script>
    // <!-- continue (继续)跳过本次循环。
        
    // break (打破)跳出整个循环
    // 逢7过。 (个位和十位不能是7) -->
    for(let i = 1;  i< 100; i++) {
        if(i % 7  == 0 || i % 10 ==7){
            console.log
            (i + "的个位数或者十位是7") ;
            // ; continue
            break;

        }
        console.log("此时 i 是 " + i);
    }
    console.log('gave over ');
</script>
</head>
<body>

</body>
</html>